DIY Skull Cut Out Sweater

I've wanted to make my own DIY skull cut out tee shirt when 

I first saw this drawing from Adam Lowe.

There are lots of DIY examples online, 

but eventually I went with a little different but supercool design I spotted on runwaydiy.com.

I started with a black sleeveless hoodie from H&M men's department.

The cut out looked weird when I wore the sweater,

so I ironed a patch of fabric on the inside you normally use to restore holes in jeans.